This book is a biography about William Kamkwamba. William as a boy made go carts out of wire. He was a small inventor like Albert Einstein. The book has a lot of stories that are cool. Most stories are about his grandpa and his life.William is a really good at building, he builds go carts out of wire and bottle caps from beer. William made a spit ball gun out of a material like bamboo with a hollow inside. I like him, I bet some other people would to. His grandpa tells story like when he was in a concert. The singer yelled at his father and fought off 20 police officers with his own two hands. This is why I like  the book and I recommend it